Question

Briefly describe how viruses evolve (mutations, selection, adaptation, etc) and the typical pressures exerted on viruses that lead to their mutation

Answer 1

Sal- (i) Houe Les Virus evolve & # Have you ever wondered why a diffrent ston of flu virus comes around every year? or how HIY, the virus that causer AIDS can become drug Resistance ? The Reason of this is that ur elolve. That is the gene pool of a risus population. can change over time. In some cases the viruses in a pobulation - such as all the flu viruses in a geographical region, ocal diffrent HIV particles in a patients body may evolve by natural selection. Heutable trait's that help a virus reproduce (such as high infectivity for Influenza, or drug resistance for HIV. - Mutation in virus & A Mutation is a permanent change in the genetic material (DNA or RNA) of a virus. À mutation can happen if there is a mistake during Copying of the DNA or RNA of the virus. some viruses have very high mutation dates. but this is not universally the case. In general, RNA viruses tend to have high mutation Rates, while DNA viruses tend to lour mutation rates.